Device for automatic adjustment of a roll gap between work rolls

Details Device for automatic adjustment of a roll gap between work rolls Device for automatic adjustment of a roll gap between work rolls

1977-05-16

1978-05-02

Mehr, Milton S.

Metal deforming

With use of control means energized in response to activator...

Sensing tool or tool-linked part

72245, B21B 3712

Patent

active

040867978

ABSTRACT:
The device for automatic adjustment of the roll gap consists of two similar operable parts arranged on each side of a mill stand, each part comprising a two-chamber hydraulic cylinder for prestressing the mill stand. The cylinder is fitted with two rods, one of which interacts with a bottom cross bar of the housing, the other one accommodating a load cell for absorbing a rolling force and being mounted so as not to be effected by the mill stand stress. One chamber of the two-chamber hydraulic cylinder communicates with a constant pressure fluid source and the other chamber communicates with a chamber of the load cell. The two-chamber hydraulic cylinder is fitted with a regulated valve, which has a throttle chamber in communication with a second chamber of the hydraulic cylinder and with an individual variable-pressure fluid source, and a control chamber combined with the chamber of the load cell.

REFERENCES:
patent: 3427839 (1969-02-01), Neumann
patent: 3686907 (1972-08-01), Sokolov et al.

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